Buffer for Instagram - Plan, track, and analyze your Instagram marketing
Tweeig - Repost any tweet to Instagram or other social media
Tagsdock - Tag Instagram photos instantly from your iOS keyboard.
TweetPik - Easily convert tweets to images SVG, PNG and JPG
Buffer - Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
Twinsta - Sharing tweets on Instagram has never been so easy!